Regression: external owned spawned actors stays in 4.25 & 4.25 plus
but it is removed from 4.26P5, 4.26P6, 4.26P7
1) Create a new level sequencer
2) Add a new actor (i.e. cube) into the scene
3) Make track with the actor in the level sequencer
4) Set the actor spawnable
5) Set the actor owned external (spawned object owner > External)
6) Play the sequencer PIE
Expected: the actor stays when the movie is finished.
Result: the actor is removed.
There's no existing public thread on this issue, so head over to AnswerHub just mention UE-103750 in the post.